146 Types of True Red

John Spacey, July 07, 2021

True reds are red colors that correspond to pure light with wavelengths of approximately 780 to 635 nanometers. Red is a spectral color that is produced by the longest wavelengths of light. True red colors are pure hues of red that aren't shaded with black, tinted with white or tinged with other colors. At the long end of scale, true reds start to look dark because they approach the boundary whereby human vision can no longer see longer wavelengths of light, known as infrared. In practice, many humans can see concentrated beams of intense infrared light but this doesn't behave as a normal color. The following is a complete list of true reds by wavelength.

780 nm
#610000

Red 779 nm
#640000

Red 778 nm
#660000

Red 777 nm
#680000

Red 776 nm
#6a0000

Red 775 nm
#6d0000

Red 774 nm
#6f0000

Red 773 nm
#710000

Red 772 nm
#730000

Red 771 nm
#750000

Red 770 nm
#770000

Red 769 nm
#7a0000

Red 768 nm
#7c0000

Red 767 nm
#7e0000

Red 766 nm
#800000

Red 765 nm
#820000

Red 764 nm
#840000

Red 763 nm
#860000

Red 762 nm
#880000

Red 761 nm
#8a0000

Red 760 nm
#8d0000

Red 759 nm
#8f0000

Red 758 nm
#910000

Red 757 nm
#930000

Red 756 nm
#950000

Red 755 nm
#970000

Red 754 nm
#990000

Red 753 nm
#9b0000

Red 752 nm
#9d0000

Red 751 nm
#9f0000

Red 750 nm
#a10000

Red 749 nm
#a30000

Red 748 nm
#a50000

Red 747 nm
#a70000

Red 746 nm
#a90000

Red 745 nm
#ab0000

Red 744 nm
#ad0000

Red 743 nm
#af0000

Red 742 nm
#b10000

Red 741 nm
#b30000

Red 740 nm
#b50000

Red 739 nm
#b70000

Red 738 nm
#b90000

Red 737 nm
#ba0000

Red 736 nm
#bc0000

Red 735 nm
#be0000

Red 734 nm
#c00000

Red 733 nm
#c20000

Red 732 nm
#c40000

Red 731 nm
#c60000

Red 730 nm
#c80000

Red 729 nm
#ca0000

Red 728 nm
#cc0000

Red 727 nm
#ce0000

Red 726 nm
#cf0000

Red 725 nm
#d10000

Red 724 nm
#d30000

Red 723 nm
#d50000

Red 722 nm
#d70000

Red 721 nm
#d90000

Red 720 nm
#db0000

Red 719 nm
#dc0000

Red 718 nm
#de0000

Red 717 nm
#e00000

Red 716 nm
#e20000

Red 715 nm
#e40000

Red 714 nm
#e60000

Red 713 nm
#e80000

Red 712 nm
#e90000

Red 711 nm
#eb0000

Red 710 nm
#ed0000

Red 709 nm
#ef0000

Red 708 nm
#f10000

Red 707 nm
#f20000

Red 706 nm
#f40000

Red 705 nm
#f60000

Red 704 nm
#f80000

Red 703 nm
#fa0000

Red 702 nm
#fb0000

Red 701 nm
#fd0000

Red 700 nm
#ff0000

Red 699 nm
#ff0100

Red 698 nm
#ff0200

Red 697 nm
#ff0300

Red 696 nm
#ff0400

Red 695 nm
#ff0500

Red 694 nm
#ff0600

Red 693 nm
#ff0700

Red 692 nm
#ff0800

Red 691 nm
#ff0900

Red 690 nm
#ff0101

Red 689 nm
#ff0102

Red 688 nm
#ff0103

Red 687 nm
#ff0104

Red 686 nm
#ff0105

Red 685 nm
#ff0106

Red 684 nm
#ff0107

Red 683 nm
#ff0108

Red 682 nm
#ff0109

Red 681 nm
#ff0201

Red 680 nm
#ff0202

Red 679 nm
#ff0203

Red 678 nm
#ff0204

Red 677 nm
#ff0205

Red 676 nm
#ff0206

Red 675 nm
#ff0301

Red 674 nm
#ff0302

Red 673 nm
#ff0303

Red 672 nm
#ff0304

Red 671 nm
#ff0401

Red 670 nm
#ff0402

Red 669 nm
#ff0403

Red 668 nm
#ff0404

Red 667 nm
#ff0405

Red 666 nm
#ff0406

Red 665 nm
#ff0501

Red 664 nm
#ff0502

Red 663 nm
#ff0503

Red 662 nm
#ff0504

Red 661 nm
#ff0601

Red 660 nm
#ff0602

Red 659 nm
#ff0603

Red 658 nm
#ff0604

Red 657 nm
#ff0605

Red 656 nm
#ff0606

Red 655 nm
#ff0701

Red 654 nm
#ff0702

Red 653 nm
#ff0703

Red 652 nm
#ff0704

Red 651 nm
#ff0705

Red 650 nm
#ff0706

Red 649 nm
#ff0707

Red 648 nm
#ff0708

Red 647 nm
#ff0801

Red 646 nm
#ff0802

Red 645 nm
#ff0803

Red 644 nm
#ff0900

Red 643 nm
#ff1000

Red 642 nm
#ff1600

Red 641 nm
#ff1b00

Red 640 nm
#ff2100

Red 639 nm
#ff2600

Red 638 nm
#ff2b00

Red 637 nm
#ff3000

Red 636 nm
#ff3400

Red 635 nm
#ff3900

Red takes up an unusually broad range of wavelengths compared to other spectral colors. For example, true green and true blue are only about 40 and 60 nanometers wide respectively whereas red is about 140 nanometers wide.